. >> reporter: you bet. bill: there are economic considerations here too. if this goes forward it could drive up the cost of president obama's new healthcare law. steven moore is a senior economic writer for the "wall street journal" to explain that. steven, good morning to you. >> hi, bill, good morning. bill: how would this work. >> the big issue with respect to legalizing these 8, 10, 12 million people who are here illegally is will they become eligible for all these government benefits this. is a big concern. i'm as proimmigration as anyone, i think immigration is one of our great sassett as a country. i have a concern offering food stamps, health benefits, welfare benefits to immigrants who come here we. want immigrants who want to come here and work and be productive citizens. we don't want our welfare system to become a nag net. this will be a big issue in that bill that you were just discussing with brit hume. bill: i'm reading from the hill.com. assuming a final deal paves the way for undocumented immigrants to receive papers, assuming, do we know